Sven Schnelle ([email protected]) just uploaded a new patch set to gerrit, 
which you can find at http://review.coreboot.org/341

-gerrit

commit 64ee1fcb2f421819882b5cc2cd5d1f19ef284c33
Author: Sven Schnelle <[email protected]>
Date:   Thu Oct 27 13:10:14 2011 +0200

    X60/T60: enable AHCI mode
    
    Signed-off-by: Sven Schnelle <[email protected]>
    Change-Id: I2166ae9ee9e7e0e431583249f015d130d15fac61
---
 src/mainboard/lenovo/t60/devicetree.cb |    3 ++-
 src/mainboard/lenovo/x60/devicetree.cb |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mainboard/lenovo/t60/devicetree.cb 
b/src/mainboard/lenovo/t60/devicetree.cb
index dba3fdd..f8ba137 100644
--- a/src/mainboard/lenovo/t60/devicetree.cb
+++ b/src/mainboard/lenovo/t60/devicetree.cb
@@ -63,7 +63,8 @@ chip northbridge/intel/i945
                        register "gpi12_routing" = "2"
                        register "gpi8_routing" = "2"
 
-                       register "sata_ahci" = "0x0"
+                       register "sata_ahci" = "0x1"
+                       register "sata_ports_implemented" = "0x01"
 
                        register "gpe0_en" = "0x11000006"
                        register "alt_gp_smi_en" = "0x1000"
diff --git a/src/mainboard/lenovo/x60/devicetree.cb 
b/src/mainboard/lenovo/x60/devicetree.cb
index 000f9c7..2f0a179 100644
--- a/src/mainboard/lenovo/x60/devicetree.cb
+++ b/src/mainboard/lenovo/x60/devicetree.cb
@@ -56,7 +56,8 @@ chip northbridge/intel/i945
                        register "gpi12_routing" = "1"
                        register "gpi8_routing" = "2"
 
-                       register "sata_ahci" = "0x0"
+                       register "sata_ahci" = "0x1"
+                       register "sata_ports_implemented" = "0x01"
 
                        register "gpe0_en" = "0x11000006"
                        register "alt_gp_smi_en" = "0x1000"

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